CN114810779A - Bullet type screw nail - Google Patents
Bullet type screw nail Download PDFInfo
- Publication number
- CN114810779A CN114810779A CN202210439004.4A CN202210439004A CN114810779A CN 114810779 A CN114810779 A CN 114810779A CN 202210439004 A CN202210439004 A CN 202210439004A CN 114810779 A CN114810779 A CN 114810779A
- Authority
- CN
- China
- Prior art keywords
- nail
- thread
- diameter
- tip
- bullet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007704 transition Effects 0.000 claims abstract description 16
- 239000003814 drug Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 7
- 239000003380 propellant Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 20
- 239000010959 steel Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 241000587161 Gomphocarpus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
- F16B25/0057—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections
- F16B25/0063—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections with a non-threaded portion on the shaft of the screw
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
The invention relates to a fastener, in particular to a bullet type threaded shooting nail. The nail tip, the transition section, the thread section and the nail cap are sequentially arranged from the tip end to the tail end; the nail point be the centrum, the centrum generating line of nail point is the pitch arc, the camber of this pitch arc reduces from most advanced to the tail end increase earlier gradually, the changeover portion be the cylinder, the diameter of changeover portion is the same with nail point tail end diameter, the diameter of changeover portion is less than screw thread section diameter, the nail cap diameter is greater than screw thread section diameter. The invention can easily penetrate into the fastening surface and keep the stable injection direction, and the thread self-tapping is formed in the penetrating process, thus the damage to the fastening surface is small.
Description
Technical Field
The invention relates to a fastener, in particular to a bullet type threaded shooting nail.
Background
The existing shooting nail has no screw thread on the nail body or starts to be provided with the screw thread at the tip of the nail body. For the shooting nail without the thread, the shooting nail can quickly penetrate into the fastening surface and can reach the deep part, but the shooting nail without the thread is easy to pull out. For the existing screw nail with screw thread, although the screw thread connection is formed after the screw nail is shot, the screw thread needs to be cut in a rotary mode to fasten the surface when the screw nail is shot, and a large amount of kinetic energy is consumed, so that the depth is influenced only by increasing the shooting kinetic energy; meanwhile, the shooting nail is easy to deviate due to the stress of the thread; the nail is shot at a high rotating speed by increasing the launching kinetic energy, so that the fastening surface is possibly heated and melted or damaged. And if the emission kinetic energy is large, the fastening surface is easy to be directly torn off to cause cracking.
Disclosure of Invention
The invention aims to provide a bullet-type threaded shooting nail to solve the problems that the existing shooting nail is poor in fastening performance and damages a fastening surface.
In order to achieve the purpose, the invention provides the following technical scheme:
the bullet-type threaded shooting nail comprises a nail tip, a transition section, a threaded section and a nail cap in sequence from the tip end to the tail end; the nail tip is a cone, the generatrix of the cone of the nail tip is an arc line, and the curvature of the arc line is gradually increased and then decreased from the tip end to the tail end; the transition section is a cylinder, the diameter of the transition section is the same as that of the tail end of the nail tip, the diameter of the transition section is smaller than that of the thread section, and the diameter of the nail cap is larger than that of the thread section.
Preferably, the thread section comprises a cylinder and threads on the surface of the cylinder, and the external diameter of the threads is gradually increased from the tip end to the tail end.
Preferably, the thread section comprises a cone and threads on the surface of the cone, and the diameter of the cone is gradually increased from the tip end to the tail end.
Preferably, the thread extends to the nail head.
Preferably, the included angle between the thread outer diameter connecting line of the thread sections and the axis of the thread sections is less than 3 degrees.
Preferably, the side wall of the nail cap is oppositely provided with a clamping surface.
Preferably, the nail cap is provided with a groove penetrating through the axle center of the nail cap to form a straight groove or a cross groove.
Preferably, the nail cap is connected with a connector, a cavity is formed in the rear end of the connector, propellant powder is filled in the cavity, and the cavity is sealed by a sealing sleeve.
Preferably, a trigger medicine hole is formed in the sealing sleeve in the concave cavity, and trigger medicines are filled in the trigger medicine hole.
Compared with the prior art, the invention can at least produce one of the following beneficial effects: the invention can easily penetrate into the fastening surface, keeps the stable injection direction, forms threads in the penetrating process, and does not crack the fastening surface.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention.
Fig. 2 is another schematic structural diagram of the present invention.
Fig. 3 is another schematic structural diagram of the present invention.
FIG. 4 is a schematic view of the structure of the present invention with a connector.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1, 2, 3 and 4 show the structure of the bullet-type threaded nail, and several embodiments are listed below with reference to the figure.
Example 1:
the bullet-type threaded shooting nail comprises a nail tip 1, a transition section 2, a threaded section 3 and a nail cap 4 in sequence from the tip end to the tail end; the nail point 1 is a centrum, a centrum generatrix of the nail point 1 is an arc line, and the curvature of the arc line is gradually increased from the tip end to the tail end and then reduced. The nail point 1 can reduce the pulsating pressure of the nail point 1 entering the steel structure by adopting the structure, and the steel structure is less prone to cracking.
The transition section 2 is a cylinder, the diameter of the transition section 2 is the same as that of the tail end of the nail tip 1, the diameter of the transition section 2 is smaller than that of the thread section 3, and the diameter of the nail cap 4 is larger than that of the thread section 3.
The bullet type threaded shooting nail can be used for connecting and fixing a light steel structure or other metal light structures. Can be used in combination with gas explosion tools, electric spring pressure tools, nail shooters and the like. When the shooting nail is impacted by an external tool, the shooting nail can enter a light steel structure, because the light steel structure is softer than the shooting nail, part of the nail tip 1 can pierce the surface of the steel structure, because the nail tip 1 is a cone, the generatrix of the cone of the nail tip 1 is an arc line, and the curvature of the arc line is gradually increased from the tip to the tail end and then reduced; the formed holes become larger. In the process, the steel structure around the hole has large acting force on the nail tip 1, if the thread is arranged at the nail tip, a large amount of kinetic energy is consumed by rotary cutting of the thread, so that the penetrating distance of the nail is influenced; meanwhile, the diameter of the nail tip is small, stability is poor, and the nail shooting deviation is easily caused when the threads are in contact with a steel structure. The transition section 2 with the same diameter is arranged behind the nail tip 1 to play a role in expanding the hole, prevent the hole from retracting and shape the hole, and then cut by the thread on the thread section 3 to form the thread, so that the force of the steel structure on the thread is smaller in the process, and the penetrating distance of the nail can be ensured; meanwhile, the temperature generated during cutting is lower, and the damage degree to a steel structure is lower; and because the nail point 1 and the changeover portion 2 have all got into the steel construction when the screw section 3 carries out the cutting, penetrate the nail and can keep higher stability, can not take place the skew during the cutting.
The configuration of the thread segments 3 may be a cylindrical body and thread formation on its surface as shown in fig. 1, with the same external diameter from the tip to the tail end. In order to further increase the fastening of the thread, the following two methods may be preferably adopted: one is that the thread segment 3 shown in fig. 2 comprises a cylinder and threads on the surface thereof, and the external diameter of the threads is gradually increased from the tip end to the tail end; one is that the thread segments 3 shown in fig. 3 comprise a cone and threads on the surface thereof, the diameter of the cone gradually increasing from the tip to the tail. Both of these ways create the effect of a gradual increase in the outer diameter of the thread. The thread groove formed by the former is gradually enlarged, and the formed thread connection is more tight; the transition section matrix of the latter has better mechanical strength, the tightening degree between the steel structure and the cone of the transition section 2 is higher, and the steel structure is suitable for the steel structure with softer texture and can be selected according to the material characteristics. For the two structures, the included angle between the thread outer diameter connecting line of the thread section 3 and the axis of the thread section 3 is preferably smaller than 3 degrees, the shooting nail always has not small impact force, and the steel structure is cracked due to overlarge angle. Further, the thread of the thread section 3 should extend to the nail cap 4, the thread is formed when the thread section 3 enters the steel structure, that is, the thread is formed at the entrance of the steel structure, the thread of the thread section 3 should extend to the nail cap 4, even if the thread on the thread section 3 completely fills the thread formed on the steel structure, no gap is formed on the steel structure, on one hand, the fastening performance and stability are better, and on the other hand, the corrosion resistance of the steel structure and the shooting nail is improved. To the nail cap 4, will penetrate the nail and take out for the convenience later stage, can be provided with clamping face 5 relatively at the lateral wall of nail cap 4, can form the hexagon. The nail cap 4 can be flat, and a groove which penetrates through the axle center of the nail cap 4 can be arranged on the nail cap 4 to form a straight groove or a cross groove.
Example 2:
as shown in fig. 4, on the basis of embodiment 1, the nail shooting device can be processed into an integral nail, the nail cap 4 is connected with a connecting body 6, the rear end of the connecting body 6 is provided with a cavity 7, the cavity 7 is filled with propellant powder, the cavity 7 is sealed by a sealing sleeve 8, the structure is suitable for single-base powder, and the integral nail shooting device is used for shooting the nail by using kinetic energy generated by impacting the propellant powder to fire the propellant powder and burning the propellant powder. In the cavity 7, a trigger medicine hole 9 is arranged on the sealing sleeve 8, and trigger medicine is filled in the trigger medicine hole 9, and the structure is suitable for double-base medicine. The shooting nail is shot out by striking the primer mixture to burn and ignite the primer mixture to generate kinetic energy.
Reference throughout this specification to multiple illustrative embodiments means that a particular structure described in connection with the embodiments is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, while a structure has been described in connection with any one embodiment, it is to be understood that it is within the scope of the invention to implement such structure in connection with other embodiments.
Claims (9)
1. Nail is penetrated to bullet formula screw thread, its characterized in that: the nail tip (1), the transition section (2), the thread section (3) and the nail cap (4) are arranged from the tip end to the tail end in sequence; the nail tip (1) is a cone, the generatrix of the cone of the nail tip (1) is an arc line, and the curvature of the arc line is gradually increased from the tip end to the tail end and then reduced;
the transition section (2) is a cylinder, the diameter of the transition section (2) is the same as that of the tail end of the nail tip (1), the diameter of the transition section (2) is smaller than that of the thread section (3), and the diameter of the nail cap (4) is larger than that of the thread section (3).
2. The bullet-type threaded nail of claim 1, wherein: the thread section (3) comprises a cylinder and threads on the surface of the cylinder, and the outer diameter of the threads is gradually increased from the tip end to the tail end.
3. The bullet-type threaded nail of claim 1, wherein: the thread section (3) comprises a cone and threads on the surface of the cone, and the diameter of the cone is gradually increased from the tip to the tail end.
4. A bullet-type threaded shot according to any one of claims 2 to 3, wherein: the thread extends to the nail cap (4).
5. A bullet-type threaded shot according to any one of claims 2 to 3, wherein: the included angle between the thread outer diameter connecting line of the thread section (3) and the axis of the thread section (3) is less than 3 degrees.
6. The bullet-type threaded nail of claim 1, wherein: the side wall of the nail cap (4) is oppositely provided with a clamping surface (5).
7. The bullet-type threaded nail of claim 1, wherein: the nail cap (4) is provided with a groove which penetrates through the axle center of the nail cap (4) to form a straight groove or a cross groove.
8. The bullet-type threaded nail of claim 1, wherein: the nail cap (4) is connected with a connecting body (6), a concave cavity (7) is formed in the rear end of the connecting body (6), propellant powder is filled in the concave cavity (7), and the concave cavity (7) is sealed by a sealing sleeve (8).
9. The bullet-type threaded nail of claim 8, wherein: in the cavity (7), a trigger medicine hole (9) is arranged on the sealing sleeve (8), and trigger medicine is filled in the trigger medicine hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210439004.4A CN114810779A (en) | 2022-04-22 | 2022-04-22 | Bullet type screw nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210439004.4A CN114810779A (en) | 2022-04-22 | 2022-04-22 | Bullet type screw nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114810779A true CN114810779A (en) | 2022-07-29 |
Family
ID=82506933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210439004.4A Pending CN114810779A (en) | 2022-04-22 | 2022-04-22 | Bullet type screw nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114810779A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1479600A (en) * | 1973-11-13 | 1977-07-13 | British Screw Co Ltd | Threaded fastener and method and tool for inserting same |
| US20020071741A1 (en) * | 2000-12-12 | 2002-06-13 | Oswald Robert C. | Drive pin for fastening a material to a metal base member |
| US20110289752A1 (en) * | 2008-07-07 | 2011-12-01 | Bernd Werthwein | Screw |
| DE102010025359A1 (en) * | 2010-06-28 | 2011-12-29 | Audi Ag | Nail for essentially turn-free axial driving into multiple non-prepunched components, has nail shaft comprising surface area profile, where hardness of region of surface area profile is lower than radial depth of nail shaft |
| CN203081952U (en) * | 2013-01-23 | 2013-07-24 | 四川德阳市力协有限责任公司 | Drive pin fastening and connecting device |
| CN205734731U (en) * | 2016-04-29 | 2016-11-30 | 四川圣亚凯紧固器材有限公司 | A kind of new-type one nail |
| CN205734736U (en) * | 2016-04-29 | 2016-11-30 | 四川圣亚凯紧固器材有限公司 | A kind of plane fixed structure piece |
| CN205780144U (en) * | 2016-05-26 | 2016-12-07 | 天津津海达科技有限公司 | A kind of Novel nail |
| CN209523963U (en) * | 2018-12-19 | 2019-10-22 | 四川南山射钉紧固器材有限公司 | A kind of high-strength stainless steel nailing |
| CN111810506A (en) * | 2020-07-17 | 2020-10-23 | 山东鑫沈行新材料科技有限公司 | High-strength stainless steel threaded nail resistant to microbial corrosion and processing method thereof |
-
2022
- 2022-04-22 CN CN202210439004.4A patent/CN114810779A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1479600A (en) * | 1973-11-13 | 1977-07-13 | British Screw Co Ltd | Threaded fastener and method and tool for inserting same |
| US20020071741A1 (en) * | 2000-12-12 | 2002-06-13 | Oswald Robert C. | Drive pin for fastening a material to a metal base member |
| US20110289752A1 (en) * | 2008-07-07 | 2011-12-01 | Bernd Werthwein | Screw |
| DE102010025359A1 (en) * | 2010-06-28 | 2011-12-29 | Audi Ag | Nail for essentially turn-free axial driving into multiple non-prepunched components, has nail shaft comprising surface area profile, where hardness of region of surface area profile is lower than radial depth of nail shaft |
| CN203081952U (en) * | 2013-01-23 | 2013-07-24 | 四川德阳市力协有限责任公司 | Drive pin fastening and connecting device |
| CN205734731U (en) * | 2016-04-29 | 2016-11-30 | 四川圣亚凯紧固器材有限公司 | A kind of new-type one nail |
| CN205734736U (en) * | 2016-04-29 | 2016-11-30 | 四川圣亚凯紧固器材有限公司 | A kind of plane fixed structure piece |
| CN205780144U (en) * | 2016-05-26 | 2016-12-07 | 天津津海达科技有限公司 | A kind of Novel nail |
| CN209523963U (en) * | 2018-12-19 | 2019-10-22 | 四川南山射钉紧固器材有限公司 | A kind of high-strength stainless steel nailing |
| CN111810506A (en) * | 2020-07-17 | 2020-10-23 | 山东鑫沈行新材料科技有限公司 | High-strength stainless steel threaded nail resistant to microbial corrosion and processing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘思冶;吕晓森;: "射钉器改制枪支的检验", 山东化工, no. 01, 8 January 2018 (2018-01-08), pages 94 - 95 * |
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